old school tuning (no wideband)
06-04-2011, 03:00 PM
#21
On The Tree
Thread Starter
I've never pulled the plugs yet. They're still stock. Next trip out I'll throw more time at it and see how it responds. I was told you really can't read the plugs on the newer motors.
06-04-2011, 04:09 PM
#22
As long as there are some deposits on the plugs, you can make a hard pass, and then you will be able to see a change in color of the deposits. Cardboard brown is close.
You wont get it perfect by reading plugs on unleaded gas, but you will be able to get it close.
06-05-2011, 09:03 AM
#24
On The Tree
Thread Starter
Well it's sort of confusing as the boat doesn't have a prop, it's basically a ditch pump. It's possible because the more torque and power this new motor has, makes the boat set back and rides higher out of the water, creating less drag. The more power it has, the faster it will go. The pump is only gonna move so much water at any rpm range. On the back of the boat there's a piece of aluminum called a ride plate, you want the boat to rock back and set on it. Last year the old sbc didn't have enough power to keep it there so it would porpoise even though it was spinning faster.
Oh and the tach is a brand new auto meter that matches the rpms on the laptop.
Oh and the tach is a brand new auto meter that matches the rpms on the laptop.
06-05-2011, 07:59 PM
#25
Well it's sort of confusing as the boat doesn't have a prop, it's basically a ditch pump. It's possible because the more torque and power this new motor has, makes the boat set back and rides higher out of the water, creating less drag. The more power it has, the faster it will go. The pump is only gonna move so much water at any rpm range. On the back of the boat there's a piece of aluminum called a ride plate, you want the boat to rock back and set on it. Last year the old sbc didn't have enough power to keep it there so it would porpoise even though it was spinning faster.
Oh and the tach is a brand new auto meter that matches the rpms on the laptop.
Oh and the tach is a brand new auto meter that matches the rpms on the laptop.
06-06-2011, 04:34 PM
#26
It's a bone stock 5.3. It can go faster with less rpms if the power is more efficient. The rpms and top end speed are not directly connected. The motor is connected with a spicer driveline, like a little driveshaft. For example my old motor turned 6300 rpms but only went 64.
06-07-2011, 09:29 AM
#27
On The Tree
Thread Starter
It's a brand new carb, I pulled the bowl off to jet it up and everything looked great. Even had the blue nonstick gaskets. Jetting it up helped alot. This weekend I will double check the fuel pressure at WOT and turn the timing up.
